Brush.



PATENTED JULY 7, 1908.

BRUSH. APELIOATION FILED JAN. 16, 1907.

. P. D. WOLPGRAM l() 0 i; *Y Ha l 2z 23 ,z/,l m I S a. l I

UNITED sirafrnsgiirnnr OFFICE.

FRANK D. WOLFGRAH, OF MILWAUKEE, WISOONSN, ASSIGNOR OF ONE-HALF TO FREDERICK M. HASSE, OF MILWAUKEE, WISCONSIN.

BRUSH.

Specification of Letters Patent.

Patented July 7', 1908.

`Application led January 16, 1907. Serial No. 352,537.

lranged adjacent to the brush, and provided with a valve devised to allow small quantities of a dust-absorbing medium to be delivered near the brush while sweeping floors, or other surfaces, and the dust-absorbing compound covered in the application for patent executed by me of even date herewith, may be used to advantage in connection therewith.

Another object of my invention is to regulate from the outside of the brush the quantity of the dust-absorbing medium delivered from the receptacle.

A further object of my invention is to keep the dust-absorbing medium within the receptacle evenly distributed and thereby prevent an uneven deliverance of the throughout the length of the brush.

A still further object of my invention is to provide simple means for attaching a handle to either side of the brush in order that the brush may be worn out evenly.

Vith the above primary, and other incidental objects, in view, the invention consists of the devices and parts, or their equivalents, as hereinafter set forth.

In the accompanying drawing, Figure 1 represents a side view of the brush, parts being broken away to show interior construction Fig. 2 is a transverse section of the brush on line 2-2 of Fig. 1, and Fig. 3 is a horizontal section of the brush taken on line 3&3 of Fig. 1, the bristles being omitted.

Referring to the drawing, the numeral 4 indicates a brush back, and 5 the cover or casing of said back. The cover or casing is stamped from sheet metal with a curved upper surface and rounded ends and is adapted to extend over the brush back so that the lower edge of the side and end walls of the Ycasing will be llush with the bottom of the brush back and is preferably attached thereto medium by screws 6, 6, although any other well known means may be used. The casing extends a sufficient height above the brush back to form a chamber or receptacle 7 for holding the dust-absorbing medium, and is also provided with a charging opening S and a sliding cover 9, the said cover beingprovided with a knob 10 to open and close the same, and with shoulders or stops 11 and 12 to prevent the entire removal of the cover from the casing.

The shoulders or stops 11 are adapted and arranged to strike against the bent up portion 18 of the casing and prevent the removal of the cover as before explained, and also act to limit the movement ofthe slide so as to properly cover the opening. The cover has its side edges bent over and towards each other and are adapted to extend under the bent over portions 14, 141 of the casing 5 thereby forming a simple sliding connection between the cover and the casing.

The top of the brush is preferably covered with a sheet metal plate 15 which forms a bottom to the chamber'. The sheet metal plate is provided with a central longitudinal line of apertures 16, 16 extending almost the entire length of the brush, and immediately below these apertures the brush back is cut out forming a slot 17 for the passage of the dust-absorbing medium discharged through the apertures of the metal plate.

Resting on top of the plate 15 is a slide 18 provided with apertures 19 spaced so as to register with the apertures in the plate 15 when the slide is moved to the full open position. The slide is held in sliding engagement with the plate 1'5 by means of guides 20, 2O extending up from the plate and over the top of the slide a slight distance. The slide 1S is provided with a stem 21 rigidly connected thereto and extending through a short slot 22 in the casing 5 and is adapted to regulate the amount of dust-absorbing medium discharged from the chamber 7. The stem is provided with a knob 23 for convenience in operating the same and also to form a cover for the short slot 22 and prevent any of the medium from being discharged therethrough, the knob being of sullicient size to entirely cover the slot when in any position of adjustment. l/Vhen the brush is in use there is a tendency of the medium within the rece )tacle to gather all at one end which woul( prevent the medium from being evenly discharged through all of the apertures, and in order to overcome this tendency I have provided a number of ridges or artitions 24 attached to the slide and extent ing partially across the chamber 7 and arranged equidistant apart, and which act as barriers or dams to prevent the medium from gathering all at one end of the receptacle.

For attaching a handle to the brush l have provided 'a plate 25 attached to the sides of the casing 5 and the brush back, said plate extending over the top of the casing and concentric thereto, and is provided with screwthreaded openings 26, 26 to accommodate the threaded end of the handle 27 therebjT forming means for'connecting the handle to the brush on either side in order that the bristles may be worn out evenly. The bristles of the brush are so spaced as to form an inclosure 28 when the brush is in contact with the surface being cleaned, and the medium discharged from the receptacle will fall onto this surface being cleaned within the inclosure and will absorb the dust therein as it is moved over the surface by the brush.

The sheet metal plate 15 is not essential to this device, as it is obvious that it could be dis ensed with and the apertures 16, 16 provic ed for in the brush back itself, the slot 17 being` omitted. In this. construction the slide 1S would rest on top of the brush back and operate in the same manner as before described.

In operation the receptacle having been filled with a dustabsorbing medium, such as the compound before mentioned, damp sawdust or any semi-dry dust absorbent, the

' slide 19 being adjusted to discharge the rnedium as desired, the brush is moved over the surface to be cleaned in the ordinary manner, and this movement will cause the medium to be discharged continuously from the receptacle forming part of the brush, onto the floor, when it will be moved over the surface by the brush and will gather or absorb the dust and dirt, and itis then brushed into a pile and removed.

The brush may be made either of bristles or fiber. I do not wish it to be understood that my brush is limited to the use of the compound which is the subject of another application for patent executed by me of even date herewith, as before mentioned, as it is obvious that any dust absorbing medium such as damp sawdust, sand, any semi-dry material, or even oil may be used to advantage in my brush and desirable results obtained.

Vhat 1 claim as my invention is:

The combination of a brush, a receptacle provided with an apertured bottom adjacent to said brush and adapted to contain a dustabsorbing medium, an apertured slide adapted to adjust the size of the apertures, and a series of partitions connected to said slide to revent the medium from gathering all at one end of the receptacle.

In testimony whereof, l affix my signature, in presence of two witnesses.

FRANK D. WO'LFGRAM.

/Vitnesses:

ANNA F. SCHMIDTBAUER. A. L, MOR-sELL. 

